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#1
04-07-2013, 04:28 PM
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Well, got curious and checked voltages on the 6t8 audio detector tube...
pins 1-2 -3 should be minus.5 minus 1.8 and minus .5 respectively.....they check 20 volts pos. at least on those pins with a digital volt meter. with analog the needle moves off the scale to the left even with the neg lead or pos lead to ground...... now I am confused... 
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#2
04-08-2013, 07:11 PM
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The reference voltages were likely taken without an antenna. The voltages you are seeing are normal.
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